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Finding the Third Proportional to 16,650 and 36,490

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Solution

The third proportional to 16,650 and 36,490 is: 79,971.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,650 : 36,490 = 36,490 : x
  2. Step 2: Convert to fraction form
    16,650/36,490 = 36,490/x
  3. Step 3: Cross multiply
    16,650x = 36,490 × 36,490
  4. Step 4: Simplify right side
    16,650x = 1,331,520,100
  5. Step 5: Solve for x
    x = 1,331,520,100/16,650
  6. Step 6: Final answer
    x = 79,971.18

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.